2003 Chevy Tahoe With Turn Signal Issues

[kuhny68]

Hi everyone – I’m having a strange turn signal issue with my 2003 Z71 Tahoe. About 10% of the time, when using the left turn signal, I immediately receive a "Turn Signal On' in the driver information window and also receive a loud dinging noise. This would be the behavior I would expect after leaving your turn signal on for an extended period of time.

 

I checked and reseated the bulb connections. I also disconnected the battery for 30 minutes to reset the computer. No luck. I'm thinking of replacing the signal switch or some kind of signal module? Any ideas? Thanks!!

[05GMCZ71]

Wow that's a new one. I wonder though if it is a problem with the on-board computer. This may be something you want to take to a mechanic to diagnose instead of just throwing parts at it, can get pretty expensive if you do that.

[kuhny68]

Thanks for the info! I was afraid of that... on-board computers expensive??

[06Voy]

Something you might try is reseating the connections to the module that control the lights. It is right above the tailpipe. There are 6 connectors on there I think.

 

When one of these connections comes a little loose mine will start doing some really weird things.

[kuhny68]

Thanks 06Voy.... looked them over and reseated, but unfortunately, problem continued.

 

Good news though, problem SOLVED!!!! I found my turn signal/hazard flasher module had the old part number with all the issues, so I thought I'd throw in a new one (part #10383321 - Ebay $60). Sure enough, this solved the problem!

 

Thanks everyone for your help...